• This forum is the machine-generated translation of www.cad3d.it/forum1 - the Italian design community. Several terms are not translated correctly.

loads for front wheel bicycle

  • Thread starter Thread starter ziocantante
  • Start date Start date

ziocantante

Guest
Hello everyone!:smile:

I am part of a team that deals with the design of a reclined bicycle (recumbent) to the torino polytechnic.

I take care of the realization of the front wheel: 20 inches, three breeds, consisting of an external carbon layer of about 0.75mm and internally filled with a resin that reticulating at high temperatures will also have structural support function.

the bicycle in question will have front traction (it is discussing the possibility of using an internal change to the wheel hub) and a singlearm fork.

After drawing the wheel with solidworks 2009 I now have to go to the study in finished elements with hypermesh 10.

I wanted to ask you if someone knew how to indicate studies that can come back useful to set the starting model: how is the wheel of a bicycle loaded (maximum load conditions)? what forces act on it and in what direction (taking into account that there will also be a traction force due to the pedal)? :eek:

thanks for availability!
 
Hello everyone!:smile:

I am part of a team that deals with the design of a reclined bicycle (recumbent) to the torino polytechnic.

I take care of the realization of the front wheel: 20 inches, three breeds, consisting of an external carbon layer of about 0.75mm and internally filled with a resin that reticulating at high temperatures will also have structural support function.

the bicycle in question will have front traction (it is discussing the possibility of using an internal change to the wheel hub) and a singlearm fork.

After drawing the wheel with solidworks 2009 I now have to go to the study in finished elements with hypermesh 10.

I wanted to ask you if someone knew how to indicate studies that can come back useful to set the starting model: how is the wheel of a bicycle loaded (maximum load conditions)? what forces act on it and in what direction (taking into account that there will also be a traction force due to the pedal)? :eek:

thanks for availability!
Why do you want to complicate something that is simple and functional by nature?
Okay if it's a "concept." .
just wait for it to be little manageable and very inguidable.

do you already have transmission and steering solutions in mind?

greetings
Marco:smile:
 
I know that maybe I shouldn't be idle, but so I can ask what advantage you think you're getting the traction on the front wheel?
 
kind Uncle Charming

I believe that one of the most critical conditions to which a wheel can be subject
front of bicycle is the case of bump with obstacle.
the situation where you want for example to climb on a sidewalk.
the inputs for the calculation are:
* total mass of the medium (my professor of reliability of the structures often cited the
famous "sumo lottator")
*Maximum speed (necks down from the stem)
* Obstacle height (bad gravestone)
*wheel diameter
the acceleration is calculated as variation of the speed vector and therefore the force
of inertia as reaction of the obstacle
* infinitely rigid frame hypothesis

if you want to make a test hard to use these as project data is
excessively conservative for an infinite life (can go well x a verification
oligocyclical) and you must therefore use load values and heights of obstacles a bit '
less severe.

Forgive me if I was perhaps too ironic, I still believe that in the absence of
regulations (and even when there are) it is necessary to always use some
common sense that in scientific terms is called statistics.

I hope I've been a little helpful.

greetings

balloon
 
Hi, Giampiero!
Thank you for the very clear and useful answer.

now comes the most complicated part, at least for me: I have to try to communicate what I want to do to the software that was provided to me to do finite element analysis (hypermesh 10.0).

I'll let you know where I got here.

thanks to the availability!
 
Hi. .

... be very careful to manage the meato between the two materials. . There are join medotes but you have to set them more than well...

Good luck... let us know!
 

Forum statistics

Threads
44,997
Messages
339,767
Members
4
Latest member
ibt

Members online

No members online now.
Back
Top